我运行了一个双变量阈值过量模型，并想绘制诊断图。我收到此错误消息。
Error in contour.default(xvec, yvec, dens, main = main, xlab = xlab, ylab = ylab, :
invalid NA contour values
代码
m1 <- fbvpot(matr1, thresh, model = "log")
plot(m1)
没有给出密度图的任何结果
这是模型结果
Call: fbvpot(x = matr1, threshold = thresh, model = "log")
Likelihood: censored
Deviance: 4949.319
AIC: 4959.319
Dependence: 0.0009124526
Threshold: -3.5023 15.7616
Marginal Number Above: 440 440
Marginal Proportion Above: 0.5577 0.5577
Number Above: 258
Proportion Above: 0.327
Estimates
scale1 shape1 scale2 shape2 dep
1.6107 -0.4623 3.9580 -0.2119 0.9993
Standard Errors
scale1 shape1 scale2 shape2 dep
7.749e-02 2.291e-02 2.165e-01 2.894e-02 2.002e-06
Optimization Information
Convergence: successful
Function Evaluations: 91
Gradient Evaluations: 10